CN103696848A - Two-stroke internal combustion engine - Google Patents
Two-stroke internal combustion engine Download PDFInfo
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- CN103696848A CN103696848A CN201310726207.2A CN201310726207A CN103696848A CN 103696848 A CN103696848 A CN 103696848A CN 201310726207 A CN201310726207 A CN 201310726207A CN 103696848 A CN103696848 A CN 103696848A
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Abstract
The invention discloses a two-stroke internal combustion engine. The two-stroke internal combustion engine comprises a shell, wherein the shell is internally provided with a piston and a crankshaft box; the crankshaft box comprises a rotating shaft; the rotating shaft is connected with a rotary compressor; the rotary compressor comprises an electromagnetic clutch and a compressed air outlet; the compressed air outlet is connected with a compressed air storage tank; the top of the shell is provided with an end cover; the end cover is provided with a compressed air nozzle, an exhaust port, a fuel injector and an ignition device; the compressed air nozzle is connected with the compressed air storage tank through a communicating pipe; the communicating pipe is provided with a compressed air automatic control valve; the exhaust port is provided with an exhaust valve; the internal combustion engine carries out air suction, acting and air exhaust processes in sequence. According to the two-stroke internal combustion engine provided by the invention, air suction and air exhaust are carried out independently, and the emission and fuel consumption are reduced.
Description
Technical field
The present invention relates to technical field of internal combustion engines, be specifically related to a kind of two-stroke internal-combustion engine.
Background technique
Internal-combustion engine, is a kind of dynamic power machine, and it is by fuel is burnt at machine intimate, and the heat energy of being emitted is directly converted to the heat engine of power.Each work cycle of internal-combustion engine is comprised of intake stroke, compression stroke, working stroke and exhaust stroke, and according to the number of turns that completes each work cycle crankshaft rotating, internal-combustion engine can be divided into quartastroke engine and two-stroke internal-combustion engine.Quartastroke engine has advantages of smooth running, environmental protection, energy-conservation, but has the shortcoming that cost is high, volume is large, power is low.Contrary with quartastroke engine, two-stroke internal-combustion engine has advantages of that volume is little, simple in structure, cost is low, power is high, and therefore, two-stroke internal-combustion engine has good development prospect.
But, traditional two-stroke internal-combustion engine, there is no independent inlet and outlet stroke, to utilize crankcase scavenging, can not make waste gas in cylinder, discharge completely, air inlet and exhaust are carried out simultaneously, and when ventilation, some inflammable mixture is discharged with waste gas, makes the discharge amount of two-stroke internal-combustion engine and fuel consumption all higher.Meanwhile, because combustion chambers of internal combustion engines volume and displacement parameter are fixed, thereby the compression ratio of internal-combustion engine is fixed, fixing compression ratio can only be applicable to design selected fuel, and application area is little.
Summary of the invention
The object of the invention is to overcome above shortcoming, provide a kind of air inlet and exhaust to carry out separately, the two-stroke internal-combustion engine that discharge amount and fuel consumption reduce, this internal-combustion engine cancelled air-breathing in traditional combustion engine cylinder and compression stroke.
Technological scheme of the present invention is:
A kind of two-stroke internal-combustion engine, comprise housing, in described housing, be provided with piston, crankcase, described crankcase comprises rotating shaft, described rotating shaft connects a rotary compressor, described rotary compressor comprises magnetic clutch and compressed air outlet, and described compressed air outlet connects a compressed air reservoir; The top of described housing is provided with an end cap, on described end cap, be provided with compressed-air atomizer, relief opening, fuel injector, ignition mechanism, described compressed-air atomizer was connected with described compressed air reservoir by connecting tube, on described connecting tube, be provided with pressurized air autocontrol valve, described relief opening is provided with outlet valve; Described internal-combustion engine carries out air inlet, acting, exhaust process successively.
Further, the idling speed of described internal-combustion engine is lower than 200 turn/min.
Further, the pressure linkage of described magnetic clutch and described compressed air reservoir, when the pressure of compression pneumatics storage tank reaches setting value, magnetic clutch disconnects, and rotary compressor quits work.
Further, described rotary compressor comprises live axle, in the rotating shaft of described crankcase with on the live axle of described rotary compressor, is respectively arranged with belt pulley, and described rotating shaft is connected by the belt being connected on described belt pulley with described rotary compressor.
Further, in the belt pulley of described rotary compressor, described magnetic clutch is set.
Further, described compressed air reservoir connects an electric compressor, and the voltage of described electric compressor is 12-24V.
Further, on described connecting tube, be also provided with an one-way valve.
Further, described one-way valve is arranged between pressurized air autocontrol valve and compressed-air atomizer.
The fuel package of spraying in described fuel injector further, is containing gasoline.
Two-stroke internal-combustion engine provided by the invention, tool has the following advantages:
1, two-stroke internal-combustion engine provided by the invention, discharge amount and fuel consumption reduce.Two-stroke internal-combustion engine provided by the invention, comprise housing, in described housing, be provided with piston, crankcase, described crankcase comprises rotating shaft, described rotating shaft connects a rotary compressor, described rotary compressor comprises magnetic clutch and compressed air outlet, and described compressed air outlet connects a compressed air reservoir; The top of described housing is provided with an end cap, on described end cap, be provided with compressed-air atomizer, relief opening, fuel injector, ignition mechanism, described compressed-air atomizer was connected with described compressed air reservoir by connecting tube, on described connecting tube, be provided with pressurized air autocontrol valve, described relief opening is provided with outlet valve; Described internal-combustion engine carries out air inlet, acting, exhaust process successively.The rotating shaft of crankcase is rotated, driven rotary formula compressor operating, and the pressurized air of generation is directly sprayed and is entered internal combustion engine chamber by compressed-air atomizer, and internal-combustion engine is started working.In the working cycle process of internal-combustion engine, do not need to carry out separately air-breathing, compression stroke, pressurized air autocontrol valve is controlled compressed-air actuated air inflow, makes pressurized air and fuel mix, reach required air fuel ratio, after pressurized air and fuel mix, directly burn, now, pressurized air autocontrol valve cuts out, the heat energy that burning produces changes into kinetic energy, after having done work, the outlet valve of relief opening is opened, and waste gas is discharged.After directly adopting pressurized air and fuel mix, burn, after burning again by outlet valve combustion gas, air inlet and exhaust are carried out separately, compare with existing two-stroke internal-combustion engine, have advantages of when air inlet is different from exhaust and carry out, fuel is in the indoor abundant burning of internal combustion engine, and discharge amount reduces, and fuel consumption reduces; Meanwhile, crankcase rotating shaft driven rotary formula compressor operating, the kinetic energy that has utilized internal-combustion engine to provide, has reduced the energy consumption that pressurized air produces; Rotary air compressor is with magnetic clutch, and constantly, clutch disconnects internal combustion engine start, and bringing onto load not while making internal combustion engine start starts soon, starts fuel consumption low.
2, two-stroke internal-combustion engine provided by the invention, carries out air inlet, acting, exhaust process successively, has cancelled compression stroke, has significantly reduced idling speed, and according to detection, idling speed, lower than 200 turn/min, greatly reduces idling oil consumption.
3, two-stroke internal-combustion engine provided by the invention, compressed air reservoir connects an electric compressor, the voltage of this electric compressor is 12-24V, belong to low power air compressor, compressed air reservoir is by an electric compressor of extra connection, when the tolerance of compressed air reservoir compressed air is not enough, the pressurized air being produced by electric compressor promotes piston, make internal-combustion engine acting, thereby driven rotary formula compressor operation produces pressurized air, when rotary compressor normally produces after pressurized air, electric compressor quits work.
4, two-stroke internal-combustion engine provided by the invention, during work without starting motor merit.Two-stroke internal-combustion engine provided by the invention, because adopting, pressurized air is directly caused in working room and fuel mix, reduced the compression stroke in traditional combustion engine work cycle, pressure breathing directly promotes piston to enable position, start working stroke, therefore, two stroke IC engine provided by the invention is without starter motor, and internal combustion engine start is fast.
5, two-stroke internal-combustion engine provided by the invention, compression ratio, air fuel ratio is adjustable, applied widely.Two-stroke internal-combustion engine provided by the invention, by the top at housing, end cap is set, compressed-air atomizer is set on end cap, compressed-air atomizer is communicated with compressed air reservoir, and control by pressurized air autocontrol valve air inflow, the pressure that pressurized air enters internal combustion engine chamber, and compressed-air actuated break-make, thereby realize, regulate the compression ratio of internal-combustion engine, the object of air fuel ratio.Because of compression ratio, air fuel ratio is adjustable, fuel applied widely, can be the mixture of gasoline and gasoline, and can adapt to the variation of output shaft torque.
6, two-stroke internal-combustion engine provided by the invention, peak power is high.Two-stroke internal-combustion engine provided by the invention, because of direct employing pressurized air and fuel mix, air fuel ratio, pneumatics be than adjustable, and air inlet and exhaust are carried out separately, can provide than the air and the fuel quantity that exceed several times in existing two-stroke internal combustion engine cylinder, and indoor at internal combustion engine, fuel is fully burned, therefore, the heat producing is large, the kinetic energy that heat converts to is high, and the maximum peak power of internal-combustion engine improves, and reaches the time shorten of maximum peak power.According to detection, maximum peak power is compared with existing two-stroke internal-combustion engine, has improved 5-10 doubly.
7, two-stroke internal-combustion engine provided by the invention, compares with the internal-combustion engine of equal discharge capacity, lightweight.Two-stroke internal-combustion engine provided by the invention, because directly adopting pressurized air and fuel mix, air fuel ratio, pneumatics are than adjustable, and the power per liter of internal-combustion engine is high.Compared with prior art, two-stroke internal-combustion engine provided by the invention, in the situation that producing same displacement, volume is little, lightweight, than the internal-combustion engine power per liter of equal discharge capacity, improves 1-5 doubly, can be applicable to aviation field.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of two-stroke internal-combustion engine of the present invention;
Reference character: 1-housing, 2-piston, 3-crankcase, 4-end cap, 5-compressed-air atomizer, 6-relief opening, 7-fuel injector, 8-ignition mechanism, 9-connecting tube, 10-compressed air reservoir, 11-pressurized air autocontrol valve, 12-outlet valve, 13-one-way valve, 14-rotary compressor, 15-internal combustion engine chamber, 16-compressed air outlet, 17-electric compressor, 18-rotating shaft.
Embodiment
Below the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiments.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment who obtains under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment:
In conjunction with Fig. 1, a kind of two-stroke internal-combustion engine, comprise housing 1, in housing 1, be provided with piston 2, crankcase 3, crankcase 3 comprises rotating shaft 18, rotating shaft connects a rotary compressor 14, and rotary compressor 14 comprises magnetic clutch and compressed air outlet 16, and compressed air outlet 16 connects a compressed air reservoir 10; The top of housing 1 is provided with an end cap 4, on end cap 4, be provided with compressed-air atomizer 5, relief opening 6, fuel injector 7, ignition mechanism 8, compressed-air atomizer 5 is by being connected with compressed air reservoir 10 connecting tube 9, on connecting tube 9, be provided with pressurized air autocontrol valve 11, relief opening 6 is provided with outlet valve 12; Internal-combustion engine carries out air inlet, acting, exhaust process successively.In accompanying drawing, do not express the structure of magnetic clutch.
It is indoor that fuel injector 7 sprays at a high speed internal combustion engine by fuel, and fuel is contacted with pressurized air from multiple directions.Pressurized air autocontrol valve 11 is for regulating compressed-air actuated air inflow, pressure, and can control compressed-air actuated break-make, above function can realize by a plurality of pressurized air autocontrol valves, and pressurized air autocontrol valve regulates automatically according to the operating conditions of internal-combustion engine.
The space that housing sidewall, piston, end cap surround is internal combustion engine chamber 15.
By compressed-air atomizer being set on the end cap of internal-combustion engine, and nozzle is communicated with compressed air reservoir, the air that makes to enter internal combustion engine chamber is pressurized air, in the working cycle process of internal-combustion engine, do not need to carry out separately compression stroke, pressurized air autocontrol valve is controlled compressed-air actuated air inflow, make pressurized air and fuel mix, reach required air fuel ratio, after pressurized air and fuel mix, directly burn, now, pressurized air autocontrol valve cuts out, the heat energy that burning produces changes into kinetic energy, after having done work, the outlet valve of relief opening is opened, waste gas is discharged.After directly adopting pressurized air and fuel mix, burn, after burning again by outlet valve combustion gas, air inlet and exhaust are carried out separately, compare with existing two-stroke internal-combustion engine, have advantages of when air inlet is different from exhaust and carry out, fuel is in the indoor abundant burning of internal combustion engine, and discharge amount reduces, and fuel consumption reduces.Meanwhile, crankcase rotating shaft driven rotary formula compressor operating, the kinetic energy that has utilized internal-combustion engine to provide, has reduced the energy consumption that pressurized air produces; Rotary air compressor is with magnetic clutch, and constantly, clutch disconnects internal combustion engine start, and bringing onto load not while making internal combustion engine start starts soon, starts fuel consumption low.
Two-stroke internal-combustion engine provided by the invention, by the top at housing, end cap is set, compressed-air atomizer is set on end cap, compressed-air atomizer is communicated with compressed air reservoir, and control by pressurized air autocontrol valve air inflow, the pressure that pressurized air enters internal combustion engine chamber, and compressed-air actuated break-make, thereby realize, regulate the compression ratio of internal-combustion engine, the object of air fuel ratio.Because of compression ratio, air fuel ratio size is adjustable, the using scope of fuel is wide, is applicable to the fuel that contains gasoline, comprises the mixture of gasoline, gasoline, diesel mixture, gasoline and other liquid fuels, and can adapt to the variation of output shaft torque.
Two-stroke internal-combustion engine provided by the invention, because directly adopting pressurized air and fuel mix, has reduced the compression stroke in traditional combustion engine work cycle, directly carries out expansion stroke, without starter motor after air inlet.
Two-stroke internal-combustion engine provided by the invention, because directly adopting pressurized air and fuel mix, air fuel ratio, pneumatics are than adjustable, and air inlet and exhaust are carried out separately, indoor at internal combustion engine, and fuel is fully burned, therefore, the heat producing is large, and the kinetic energy that heat converts to is high, and the maximum peak power of internal-combustion engine improves.According to detection, maximum peak power is compared with existing same discharge capacity two-stroke internal-combustion engine, has improved 5-10 doubly.
Two-stroke internal-combustion engine provided by the invention, because directly adopting pressurized air and fuel mix, air fuel ratio, pneumatics are than adjustable, and the power per liter of internal-combustion engine is high.Compared with prior art, two-stroke internal-combustion engine provided by the invention, in the situation that producing same displacement, volume is little, lightweight, than the lightweight 20-40% of the internal-combustion engine of equal discharge capacity.
Two-stroke internal-combustion engine provided by the invention, idling speed, lower than 200 turn/min, greatly reduces idling oil consumption.
In the present invention, preferably, the pressure linkage of magnetic clutch and compressed air reservoir 10, when the pressure of compression pneumatics storage tank reaches setting value, magnetic clutch disconnects, and rotary compressor quits work, and realizes according to working condition start and stop rotary compressor; And internal combustion engine start constantly, clutch disconnects, and bringing onto load not while making internal combustion engine start starts soon, starts fuel consumption low.
In the present embodiment, rotary compressor 14 comprises live axle, in the rotating shaft 18 of crankcase with on the live axle of rotary compressor 14, is respectively arranged with belt pulley, and rotating shaft is connected by the belt being connected on belt pulley with rotary compressor.In accompanying drawing, do not mark the reference character of live axle, belt pulley, belt.Preferably, above-mentioned magnetic clutch is set in the belt pulley of rotary compressor, compact structure, controls effective.
In the present invention, compressed air reservoir 10 connects an also electric compressor 17, the voltage of electric compressor 17 is 12-24V, belong to miniature electric air compressor, when the tolerance of compressed air reservoir compressed air is not enough, the pressurized air being produced by electric compressor promotes piston, make internal-combustion engine acting, thereby driven rotary formula compressor operation produces pressurized air, and when rotary compressor normally produces after pressurized air, electric compressor quits work.
In the present embodiment, on described connecting tube 9, be also provided with an one-way valve 13, can prevent that the indoor burning mixture of internal combustion engine from blowing back in connecting tube, pollute compressed air reservoir.Preferably, one-way valve 13 is arranged between pressurized air autocontrol valve 11 and compressed-air atomizer 5, can prevent burning mixture refluence post-etching pressurized air autocontrol valve 11, reduces the cost of overhaul.
In the present embodiment, the bottom of compressed air reservoir is provided with the electric draining valve of, in time the moisture containing in pressurized air is discharged, and pressurized air is kept dry.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing, be equal to replacement etc., within all should being included in protection scope of the present invention in protection scope of the present invention.
Claims (9)
1. a two-stroke internal-combustion engine, comprise housing, in described housing, be provided with piston, crankcase, it is characterized in that, described crankcase comprises rotating shaft, described rotating shaft connects a rotary compressor, and described rotary compressor comprises magnetic clutch and compressed air outlet, and described compressed air outlet connects a compressed air reservoir; The top of described housing is provided with an end cap, on described end cap, be provided with compressed-air atomizer, relief opening, fuel injector, ignition mechanism, described compressed-air atomizer was connected with described compressed air reservoir by connecting tube, on described connecting tube, be provided with pressurized air autocontrol valve, described relief opening is provided with outlet valve; Described internal-combustion engine carries out air inlet, acting, exhaust process successively.
2. two-stroke internal-combustion engine according to claim 1, is characterized in that, the idling speed of described internal-combustion engine is lower than 200 turn/min.
3. two-stroke internal-combustion engine according to claim 1 and 2, it is characterized in that, the pressure linkage of described magnetic clutch and described compressed air reservoir, when the pressure of compression pneumatics storage tank reaches setting value, magnetic clutch disconnects, and rotary compressor quits work.
4. two-stroke internal-combustion engine according to claim 1, it is characterized in that, described rotary compressor comprises live axle, in the rotating shaft of described crankcase with on the live axle of described rotary compressor, be respectively arranged with belt pulley, described rotating shaft is connected by the belt being connected on described belt pulley with described rotary compressor.
5. two-stroke internal-combustion engine according to claim 4, is characterized in that, described magnetic clutch is set in the belt pulley of described rotary compressor.
6. two-stroke internal-combustion engine according to claim 1, is characterized in that, described compressed air reservoir connects an electric compressor, and the voltage of described electric compressor is 12-24V.
7. two-stroke internal-combustion engine according to claim 1, is characterized in that, is also provided with an one-way valve on described connecting tube.
8. two-stroke internal-combustion engine according to claim 7, is characterized in that, described one-way valve is arranged between pressurized air autocontrol valve and compressed-air atomizer.
9. two-stroke internal-combustion engine according to claim 1, is characterized in that, the fuel package of spraying in described fuel injector is containing gasoline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310726207.2A CN103696848B (en) | 2013-12-25 | 2013-12-25 | A kind of two-stroke internal-combustion engine |
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| CN201310726207.2A CN103696848B (en) | 2013-12-25 | 2013-12-25 | A kind of two-stroke internal-combustion engine |
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| CN103696848A true CN103696848A (en) | 2014-04-02 |
| CN103696848B CN103696848B (en) | 2016-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285932A (en) * | 2015-06-23 | 2017-01-04 | 康柱 | Hybrid power engine |
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| CN1244233A (en) * | 1996-10-25 | 2000-02-09 | 克莱德·C·布赖恩特 | Improved internal combustion engine and working cycle |
| CN101092902A (en) * | 2007-07-16 | 2007-12-26 | 靳北彪 | Other gas filled type engine |
| CN201679557U (en) * | 2010-04-02 | 2010-12-22 | 李长城 | Pressure accumulation forced air intake type internal combustion engine |
| CN102518507A (en) * | 2012-01-06 | 2012-06-27 | 何凌锋 | Forced air inflow device of internal combustion engine |
-
2013
- 2013-12-25 CN CN201310726207.2A patent/CN103696848B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1244233A (en) * | 1996-10-25 | 2000-02-09 | 克莱德·C·布赖恩特 | Improved internal combustion engine and working cycle |
| CN101092902A (en) * | 2007-07-16 | 2007-12-26 | 靳北彪 | Other gas filled type engine |
| CN201679557U (en) * | 2010-04-02 | 2010-12-22 | 李长城 | Pressure accumulation forced air intake type internal combustion engine |
| CN102518507A (en) * | 2012-01-06 | 2012-06-27 | 何凌锋 | Forced air inflow device of internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285932A (en) * | 2015-06-23 | 2017-01-04 | 康柱 | Hybrid power engine |
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| CN103696848B (en) | 2016-03-23 |
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Effective date of registration: 20170907 Address after: Shaoyang City, Hunan province 422807 cattle town Shaodong County Department head village 5 Group No. 1 wells Patentee after: Hunan macro wave internal combustion engine Co., Ltd. Address before: Shaoyang City, Hunan province 422807 cattle town Shaodong County Department head village 5 Group No. 1 wells Patentee before: Guo Zhihui |
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Effective date of registration: 20210309 Address after: 422807 No.1, group 5, shuijingtou village, Niumasi Town, Shaodong county, Shaoyang City, Hunan Province Patentee after: Guo Zhihui Address before: 422807 No.1, group 5, shuijingtou village, Niumasi Town, Shaodong county, Shaoyang City, Hunan Province Patentee before: Hunan macro wave internal combustion engine Co.,Ltd. |